These dog labels are made to mix and match for the Julius K9 harness range.White light emitting attachable labels allow others to see the status of your dog, whether its a guide dog, security dog or sniffer dog. Fun labels are also available! These stickers come in pairs - one for each side of the harness. Size Guide: Small Labels: IDC Dog Harness: Baby1, Baby2, Mini-Mini, Mini, size 0. IDC Belt Harness: Mini-Mini, Mini, size 0. Julius K9 Power Harness: Baby 2, Mini-Mini, Mini, size 0. Large Labels: Harnesses sized 1 or over.